{ "id": "1810.02672", "version": "v1", "published": "2018-10-05T13:25:56.000Z", "updated": "2018-10-05T13:25:56.000Z", "title": "Ab-initio Exciton-polaritons: Cavity control of Dark Excitons in two dimensional Materials", "authors": [ "Simone Latini", "Enrico Ronca", "Umberto de Giovannini", "Hannes Hübener", "Angel Rubio" ], "comment": "8 pages. 8 figures, 1 table", "categories": [ "cond-mat.mes-hall", "cond-mat.mtrl-sci" ], "abstract": "We demonstrate a robust and efficient way of controlling the optical spectra of two-dimensional materials by embedding them in a quantum cavity. The strength of the cavity light-matter coupling leads to superposition of bright and dark excitons making viable the optical observation of dark excitons. Our theoretical calculations are based on a newly developed theoretical framework that involves the ab-initio solution of the coupled quantized electron-photon Schr\\\"odinger equation in a quantum-electrodynamics plus Bethe-Salpeter approach. It enables the simulations of exciton-polariton states and their dispersion in a strong cavity light-matter coupling regime. We then develop a general Mott-Wannier model for this excitonic-polariton cavity problem which can be readily applied to a wider range of applications of van-der-Waals heterostructure materials in cavities.", "revisions": [ { "version": "v1", "updated": "2018-10-05T13:25:56.000Z" } ], "analyses": { "keywords": [ "dark excitons", "ab-initio exciton-polaritons", "cavity control", "dimensional materials", "strong cavity light-matter coupling regime" ], "note": { "typesetting": "TeX", "pages": 8, "language": "en", "license": "arXiv", "status": "editable" } } }